/**
 * Copyright (c) 2011 ~ 2014 Deepin, Inc.
 *               2013 ~ 2014 jouyouyun
 *
 * Author:      jouyouyun <jouyouwen717@gmail.com>
 * Maintainer:  jouyouyun <jouyouwen717@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 **/

package main

import (
	"fmt"
	"github.com/BurntSushi/xgbutil"
	"github.com/BurntSushi/xgbutil/keybind"
	"github.com/BurntSushi/xgbutil/xevent"
	"os/exec"
)

var X *xgbutil.XUtil

func startGrabKbd() {
	err := keybind.GrabKeyboard(X, X.RootWin())
	if err != nil {
		fmt.Printf("GrabKeyboard failed: %v\n", err)
		return
	}

	xevent.KeyPressFun(
		func(X *xgbutil.XUtil, e xevent.KeyPressEvent) {
			modStr := keybind.ModifierString(e.State)
			keyStr := keybind.LookupString(X, e.State, e.Detail)
			if len(modStr) > 0 {
				keyStr = modStr + "-" + keyStr
			}
			fmt.Printf("Event key: %s\n", keyStr)
			stopGrabKbd()
			exec.Command("/usr/bin/xdotool", []string{"key", keyStr}...).Run()
		}).Connect(X, X.RootWin())
}

func stopGrabKbd() {
	keybind.UngrabKeyboard(X)
	xevent.Quit(X)
}

func main() {
	var err error
	X, err = xgbutil.NewConn()
	if err != nil {
		fmt.Printf("New XUtil connection failed: %v\n", err)
		return
	}
	keybind.Initialize(X)

	startGrabKbd()
	xevent.Main(X)
}
